Baldor 23H Series Installation & Operating Manual page 78

Section 1
General Information
INDICATION
Invalid Base ID Control does not recognize HP and
Voltage configuration.
Inverter Base ID Power base with no output phase
current sensors being used.
Logic Supply FLT Power supply malfunctioned.
Lost User Data Battery backed memory failure.
Low INIT Bus V Improper AC line voltage.
Memory Error EEPROM memory fault occurred.
mP Reset
Power was cycled before Bus
voltage reached 0VDC.
Motor has wrong Analog input common mode voltage
response to may be excessive.
Speed Command
Motor Will Not Not enough starting torque.
Start
Motor overloaded.
Control not in local mode of
operation.
Motor may be commanded to run
below minimum frequency setting.
Incorrect Command Select
parameter.
Incorrect speed command.
Motor Will Not Max Output Speed set too low.
Reach Maximum
Motor overloaded.
Speed
Improper speed command.
Speed potentiometer failure.
Motor Will Not MIN Output Speed parameter set
Stop Rotation too high.
Improper speed command.
Speed potentiometer failure.
Analog input common mode voltage
may be excessive.
Analog offset trim set incorrectly.
MN723
Table 5-2 Troubleshooting
POSSIBLE CAUSE
Continued
CORRECTIVE ACTION
Press "RESET" key on keypad. If fault remains, call Baldor.
Replace power base with one that has output phase current
feedback. Contact Baldor.
Replace logic power supply.
Parameter data was erased. Disconnect power to control and
apply power (cycle power). Enter all parameters.
Cycle power. If problem persists, contact Baldor.
Disconnect Dynamic Brake hardware and retry test.
Check input AC voltage level.
Press "RESET" key on keypad. If fault remains, call Baldor.
Press "RESET" key on keypad.
Disconnect power and allow at least 5 minutes for Bus capacitors to
discharge before applying power. If fault remains, call Baldor.
Connect control input source common to control common to minimize
common mode voltage. Maximum common mode voltage at terminals
J1-4 and J1-5 is ±15VDC referenced to chassis common.
Increase Current Limit setting.
Check for proper motor loading.
Check couplings for binding.
Verify proper sizing of control and motor.
Place control in local mode.
Increase speed command or lower minimum frequency setting.
Change Command Select parameter to match wiring at J1.
Verify control is receiving proper command signal at J1.
Adjust MAX Output Speed parameter value.
Check for mechanical overload. If unloaded motor shaft does not rotate
freely, check motor bearings.
Verify control is set to proper operating mode to receive speed command.
Verify control is receiving proper command signal at input terminals.
Check velocity loop gains.
Replace potentiometer.
Adjust MIN Output Speed parameter value.
Verify control is receiving proper command signal at input terminals.
Verify control is set to receive speed command.
Replace potentiometer.
Connect control input source common to control common to minimize
common mode voltage. Maximum common mode voltage at terminals
J1-4 and J1-5 is ±15VDC referenced to chassis common.
Adjust the Level 1 Input block, ANA CMD Offset parameter value to obtain
zero speed with a zero value input command.
Troubleshooting 5-7